Apparatus and method for reading an optical code
US6817525B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 1999 |
| Grant date | Nov 16, 2004 |
| Priority date | — |
| Expiry date | May 27, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10732
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and a method for reading an optical code has a casing with a reading window. The casing includes an illumination device acting through the reading window on an optical code to be read, a detection device responsive to light scattered from the illuminated optical code into the casing through the reading window, and an objective lens interposed between the reading window and the detection device, in a position to pick up the light scattered from the illuminated optical code and project this light onto the detection device. The detection device has a plurality of light-sensitive elements effective to convert the light to electric signals representing the light image, wherein the illumination device has a first array of light sources active in a first illumination configuration, and at least a second array of light sources active in at least a second illumination configuration different from the first one.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.